PIC die with optical deflector for ambient light

    公开(公告)号:US11837547B2

    公开(公告)日:2023-12-05

    申请号:US17450324

    申请日:2021-10-08

    CPC classification number: H01L23/53295 H01L23/5226 H01L23/552

    Abstract: A photonic integrated circuit (PIC) die includes a silicon nitride optical component over an active region. Multiple interconnect layers are over the silicon nitride optical component, each of the multiple interconnect layers including a metal interconnect therein. At least one optical deflector is over the multiple interconnect layers and over the silicon nitride optical component. The optical deflector(s) may also include a contact passing therethrough to the interconnect layers, but do not include any other electrical interconnects. Each optical deflector may deflect light within an ambient light range of less than 570 nanometers (nm) to protect the silicon nitride optical component from light-induced degradation.

    BACK-END-OF-LINE EDGE COUPLERS WITH A TAPERED GRATING

    公开(公告)号:US20230367067A1

    公开(公告)日:2023-11-16

    申请号:US17741684

    申请日:2022-05-11

    CPC classification number: G02B6/124 G02B6/1228 G02B6/13 G02B2006/12107

    Abstract: Structures for an edge coupler and methods of fabricating such structures. The structure comprises a substrate and a back-end-of-line edge coupler including a waveguide core and a grating positioned in a vertical direction between the substrate and the waveguide core. The first waveguide core includes a first longitudinal axis, the grating includes a second longitudinal axis and a plurality of segments positioned with a spaced-apart arrangement along the second longitudinal axis, and the second longitudinal axis is aligned substantially parallel to the first longitudinal axis.

    MONOLITHIC INTEGRATION OF DIVERSE DEVICE TYPES WITH SHARED ELECTRICAL ISOLATION

    公开(公告)号:US20230361127A1

    公开(公告)日:2023-11-09

    申请号:US18139981

    申请日:2023-04-27

    CPC classification number: H01L27/1203 H01L21/84 H01L27/085 H01L29/872

    Abstract: Structures including III-V compound semiconductor-based devices and silicon-based devices integrated on a semiconductor substrate and methods of forming such structures. The structure includes a substrate having a device layer, a handle substrate, and a buried insulator layer between the handle substrate and the device layer. The structure includes a first semiconductor layer on the device layer in a first device region, and a second semiconductor layer on the device layer in a second device region. The first semiconductor layer contains a III-V compound semiconductor material, and the second semiconductor layer contains silicon. A first device structure includes a gate structure on the first semiconductor layer, and a second device structure includes a doped region in the second semiconductor layer. The doped region and the second semiconductor layer define a p-n junction.

    Waveguides and edge couplers with multiple-thickness waveguide cores

    公开(公告)号:US11808996B1

    公开(公告)日:2023-11-07

    申请号:US17729244

    申请日:2022-04-26

    Inventor: Yusheng Bian

    CPC classification number: G02B6/4206 G02B6/42

    Abstract: Photonics structures for a waveguide or an edge coupler and methods of fabricating a photonics structure for a waveguide or an edge coupler. The photonics structure includes a waveguide core having a first section, a second section longitudinally adjacent to the first section, first segments projecting in a vertical direction from the first section, and second segments projecting in the vertical direction from the second section. The first section of the waveguide core has a first thickness, and the second section of the waveguide core has a second thickness that is greater than the first thickness.

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